Monochromatic light and photoreceptor cells

The present investigation is aimed to ascertain the movement of photoreceptor cells under different monochromatic light conditions. The under water vision depends on condition of water ie transparency of water, current of water, depth of water as well as on vision acuivity of species present there. Turbid and rough water may transmit less light than clear and clam water. In clam water species view the objects above the water through a circle above each eye, nearly all objects from horizon to horizon are viewed when window is enlarged with increasing depth. While the arial field is neither narrowed nor widened, there may be change in the brightness or distortion of objects with change is depth. Object appear largest when they are directly overhead. The present work reports the retinomotar responses to different monochromatic light conditions.